CN218321068U - Multistage vertical flow composite artificial wetland system - Google Patents
Multistage vertical flow composite artificial wetland system Download PDFInfo
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- CN218321068U CN218321068U CN202222689714.0U CN202222689714U CN218321068U CN 218321068 U CN218321068 U CN 218321068U CN 202222689714 U CN202222689714 U CN 202222689714U CN 218321068 U CN218321068 U CN 218321068U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model discloses a compound constructed wetland system of multistage vertical current has set gradually baffling sedimentation tank, ecological interception pond, the compound constructed wetland treatment tank of vertical current, catch basin and ultraviolet disinfection pond along sewage water flow direction. The sewage is firstly treated by a baffling sedimentation tank to remove large suspended particles and partial nitrogen and phosphorus pollutants, then is treated by an ecological interception tank for adsorption degradation, then is treated by multi-stage vertical flow artificial wetland for multiple degradation and purification, and finally is treated by an ultraviolet disinfection tank for degerming and disinfection. The utility model discloses guarantee constructed wetland system is stable and high-efficient operation, makes the filler in the ecological interception filter pond obtain abundant and sustainable use, goes upward through the multistage simultaneously and flows to the treatment effect that improves the constructed wetland system with down, reduces the treatment load.
Description
Technical Field
The utility model belongs to the ecological processing field of sewage, concretely relates to compound constructed wetland system of multistage vertical current.
Background
The artificial wetland system is a natural ecological treatment technology for purifying sewage by utilizing the physical, chemical and biological synergistic effects of soil, fillers, animals, plants, microorganisms and other media. Has the advantages of low investment and operation cost, good sewage treatment effect, strong impact resistance, capability of beautifying ecological environment and the like, and has extremely wide application prospect.
The artificial wetland system can be divided into a surface flow wetland and an undercurrent wetland according to the mode that sewage flows in the artificial wetland system, wherein the water surface of the surface flow artificial wetland system is exposed to the atmosphere, and the sewage flows on the surface of the artificial wetland system in a flooding way; the subsurface flow wetland can be subdivided into a horizontal subsurface flow constructed wetland system and a vertical flow constructed wetland system according to the flow direction of water flow. The horizontal subsurface flow constructed wetland system means that sewage sequentially passes through the filler medium along the horizontal direction to reach the plant root system and finally flows out to achieve the purification purpose. The vertical flow artificial wetland system is characterized in that sewage sequentially passes through different media in the packing layer along the longitudinal direction, and the water flow vertically flows from top to bottom to purify the water quality.
The surface flow wetland system has lower hydraulic load, large floor area, lower processing capacity and unattractive appearance; the horizontal subsurface flow constructed wetland system has large floor area, poor reoxygenation capability and limited water quality purification capability; compared with a horizontal subsurface flow constructed wetland system, the vertical subsurface flow constructed wetland system has a good nitrification effect, but has insufficient denitrification effect, and can not form alternate aerobic, anoxic and anaerobic conditions in a single constructed wetland system. The sewage treatment structure of the single type artificial wetland system is simple, and the decontamination rate is not high.
In addition, the particles in the sewage easily cause the blockage phenomenon of the artificial wetland system, thereby influencing the stability of the artificial wetland system. The filler in the general artificial wetland system is not easy to replace because the filler is large in laying area and is positioned under the water surface. In addition, only the treatment means of physical precipitation, chemical adsorption and biodegradation cannot treat the pollutants such as bacteria and viruses in the sewage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problems existing in the prior art and providing a multi-level vertical flow composite type constructed wetland system.
In order to achieve the above object, the utility model provides a following technical scheme:
a multi-stage vertical flow composite artificial wetland system comprises a baffling sedimentation tank, an ecological interception tank, a vertical flow composite artificial wetland treatment tank, a water collection tank and an ultraviolet disinfection tank; the baffling sedimentation tank comprises a baffling tank and an inverted cone-shaped sludge collecting tank, the inverted cone-shaped sludge collecting tank is arranged at the bottom of the baffling tank, and the bottom of the baffling tank is communicated with the bottom of the ecological interception tank through a drain pipe; the top of the ecological interception tank is communicated with the top of the overflow side of the vertical flow composite artificial wetland treatment tank through overflow; the top of the water outlet side of the vertical flow composite type artificial wetland treatment tank is communicated with a water collecting tank through a water outlet pipe; the water collecting tank is communicated with the ultraviolet disinfection tank in an overflow way.
As above baffling pond side bottom of baffling sedimentation tank is equipped with the drain pipe, and the filter screen is installed to the one end of drain pipe and baffling sedimentation tank intercommunication, and back taper collection mud pond bottom is equipped with the mud pipe, sets up the atmospheric valve on the mud pipe.
The water distribution layer, the biomass charcoal layer and the zeolite filler layer are sequentially arranged in the ecological intercepting pool from bottom to top; the water distribution layer is internally provided with water distribution pipes which are uniformly distributed in the water distribution layer, the pipe wall of each water distribution pipe is provided with water distribution holes, and the water distribution pipes are communicated with the drainage pipes.
As mentioned above, a first grid filler frame is arranged between the water distribution layer and the biomass charcoal layer, and a second grid filler frame is arranged between the biomass charcoal layer and the zeolite filler layer.
The biomass charcoal layer comprises a biomass charcoal filling cage laid on the first grid filling frame and biomass charcoal filling filled in the biomass charcoal filling cage, and the zeolite filling layer comprises a zeolite filling cage laid on the second grid filling frame and zeolite filling filled in the zeolite filling cage.
The vertical flow composite type artificial wetland treatment tank is internally provided with a plant layer, a soil layer, a gravel layer and a biological zeolite layer from top to bottom in sequence; the laying thickness of the soil layer is 20-30cm, the laying thickness of the gravel layer is 60-80cm, and the laying thickness of the biological zeolite layer is 20-30cm.
As described above, the cover plate having the through holes is disposed between the plant layer and the soil layer, and the roots of the plants in the plant layer are planted in the soil layer divided by the through holes.
The vertical flow composite type artificial wetland treatment tank is internally divided into a plurality of vertical artificial wetland units which are arranged in an up-down direction in sequence by a plurality of middle clapboards, the middle clapboards are connected with the bottom of the vertical flow composite type artificial wetland treatment tank, and an overflow space is reserved between each middle clapboard and the cover plate;
each level of up-down vertical artificial wetland unit is divided into a wetland vertical down channel and a wetland vertical up channel by a baffle plate, the bottom of the baffle plate and the bottom of the vertical flow composite artificial wetland treatment tank keep a set treatment tank bottom space, and the treatment tank bottom space is used as a water passing channel of the wetland vertical down channel and the wetland vertical up channel; the top end of the baffling baffle is flush with the top surface of the soil layer, and the vertical wetland ascending channel of the upper-level ascending and descending vertical artificial wetland unit and the vertical wetland descending channel of the lower-level ascending and descending vertical artificial wetland unit are communicated in an overflowing mode through the overflowing distance at the top of the middle partition plate.
The bottom end of the baffle plate extends to the middle of the layer of bio-zeolite, while the top of the middle separator plate extends to the middle of the soil layer, as described above.
The wetland vertical ascending channel of the last stage of the ascending and descending vertical artificial wetland unit is communicated with the water collecting tank through the water outlet pipe.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the traditional single-flow-direction wetland is coupled into a multi-stage vertical-flow composite artificial wetland system, the advantages of the vertical-flow artificial wetland system are fully utilized, and multiple effects are combined and superposed, so that sewage flows up and down in a multi-stage vertical-up and down artificial wetland units along the vertical direction, and the sewage forms alternate aerobic, anoxic and anaerobic conditions in the multi-stage vertical-up and down artificial wetland units, meanwhile, the nitrification effect and the denitrification effect are ensured, in addition, the sewage retention time is prolonged, and the sewage is fully contacted with microorganisms, plant roots and fillers in the artificial wetland system, so that the decontamination efficiency of the artificial wetland system is enhanced;
2. the utility model discloses set up baffling sedimentation tank and ecological interception pond at the constructed wetland front end, baffling sedimentation tank holds back partial suspended particulate matter, and packing and microorganism adsorb degradation part nitrogen phosphorus pollutant in the ecological interception pond, under multiple actions such as physical precipitation, adsorption degradation, get rid of most pollutant in the sewage, alleviated the particulate matter and caused the wetland system and blocked the phenomenon, ensured the stable high-efficient operation of constructed wetland system, reduced the pollution load who gets into the wetland system simultaneously;
3. the ecological interception tank adopts the first grid filler frame, the second grid filler frame, the biomass charcoal filler cage and the zeolite filler cage which are detachable, so that the flexibility and convenience of sewage treatment of the constructed wetland system are improved, and the full utilization and sustainable utilization of the filler are enhanced;
4. the sewage is subjected to deep degradation and purification by the multistage up-down vertical artificial wetland units and then is subjected to ultraviolet disinfection, so that the quality of the effluent can be further improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a vertical flow composite artificial wetland treatment tank;
FIG. 3 is a schematic structural diagram of an ecological intercepting pool;
FIG. 4 is a schematic diagram of the structure of the filter screen of the drainage pipe of the baffled sedimentation tank;
FIG. 5 is a schematic view of a water distribution pipe of the ecological intercepting tank.
In the figure: 1-baffling sedimentation tank, 2-ecological intercepting tank, 201-water distribution layer, 202-biomass charcoal layer, 203-zeolite packing layer, 3-vertical flow composite artificial wetland treatment tank, 301-plant layer, 302-soil layer, 303-gravel layer, 304-biological zeolite layer, 4-water collecting tank, 5-ultraviolet disinfection tank, 6-baffling baffle, 7-water discharge pipe, 8-filter screen, 9-water distribution pipe, 10-water outlet pipe and 11-middle baffle.
Detailed Description
To facilitate understanding and practice of the invention by those of ordinary skill in the art, the invention is described in further detail below with reference to examples, which are provided for illustration and explanation and are not intended to limit the invention.
Example 1:
a multi-level vertical flow composite type artificial wetland system is shown in figure 1 and comprises a baffling sedimentation tank 1, an ecological intercepting tank 2, a vertical flow composite type artificial wetland treatment tank 3, a water collecting tank 4 and an ultraviolet disinfection tank 5 which are arranged in sequence:
the baffling sedimentation tank 1 comprises a baffling tank and an inverted cone-shaped sludge collection tank, the inverted cone-shaped sludge collection tank is arranged at the bottom of the baffling tank, the inverted cone-shaped sludge collection tank is favorable for collecting and discharging settled silt, and the bottom of the baffling tank is communicated with the bottom of the ecological interception tank 2 through a drain pipe 7; the top of the ecological interception tank 2 is communicated with the top of the overflow side of the vertical flow composite type artificial wetland treatment tank 3 through overflow; the top of the water outlet side of the vertical flow composite type artificial wetland treatment tank 3 is communicated with the water collecting tank 4 through a water outlet pipe 10; the water collecting tank 4 is communicated with the ultraviolet disinfection tank 5 in an overflowing way;
sewage flows in from the top of the baffling sedimentation tank 1, then sequentially passes through the ecological interception tank 2, the vertical flow composite artificial wetland treatment tank 3, the water collecting tank 4 and the ultraviolet disinfection tank 5, the ultraviolet disinfection tank 5 is provided with a water outlet, and the sewage is finally discharged through the water outlet of the ultraviolet disinfection tank 5.
In this embodiment, it is required to ensure that the water level of the baffling sedimentation tank 1 is higher than the water level of the ecological intercepting tank 2, and the water level of the ecological intercepting tank 2 is higher than the water level of the vertical flow composite type artificial wetland treatment tank 3, so that the sewage smoothly flows into the ecological intercepting tank 2 from the baffling sedimentation tank 1 and then overflows to the vertical flow composite type artificial wetland treatment tank 3.
As shown in figure 1, sewage enters a baffling sedimentation tank 1 to remove most of large suspended solid particles, a drain pipe 7 is arranged 50mm upwards at the bottom of the side surface of the baffling sedimentation tank 1, a filter screen 8 is arranged at one end of the drain pipe 7 communicated with the baffling sedimentation tank 1, the other end of the drain pipe 7 is communicated with a water distribution pipe 9 of an ecological interception tank 2, and as shown in figure 4, the pores of the filter screen 8 are 4-8 meshes. The department of the ascending 40mm department in back taper collection mud bottom of the pool bottom is equipped with the mud pipe, sets up atmospheric valve on the mud pipe, after sediment accumulation a certain amount of silt in back taper collection mud pond, can open through controlling atmospheric valve, and silt is through the mud pipe to discharging outward.
A water distribution layer 201, a biomass charcoal layer 202 and a zeolite packing layer 203 are sequentially arranged in the ecological intercepting pool 2 from bottom to top, a water distribution pipe 9 is arranged in the water distribution layer 201, the water distribution pipes 9 are uniformly distributed in the water distribution layer 201, and the water distribution pipes 9 are arranged in a shape like a Chinese character jing in the embodiment. The pipe wall of the water distribution pipe 9 is provided with water distribution holes, so that sewage flows upwards from the water distribution pipe 9 under the action of water pressure, the drain pipe 7 is communicated with the water distribution pipe 9, the sewage enters the water distribution layer 201 of the ecological interception tank 2 from the baffling sedimentation tank 1 along the drain pipe 7, water is uniformly distributed in the ecological interception tank 2 through the water distribution pipe 9, then the water flow sequentially passes through the biomass carbon layer 202 and the zeolite packing layer 203 along the vertical upward direction, and pollutants such as biochemical oxygen demand, nitrogen, phosphorus, solid suspended particulate matters and the like in water are removed through the adsorption and degradation of the biomass carbon and the zeolite packing. The design of the water distribution pipes 9 in the water distribution layer 201 enables the sewage to uniformly flow upwards to be in more full contact with the biomass carbon and the zeolite filler, and the purification effect is improved.
Be provided with first net filled frame between water distribution layer 201 and the biomass charcoal layer 202, set up second net filled frame between biomass charcoal layer 202 and the zeolite packing layer 203, first net filled frame and second net filled frame can be dismantled with the inner wall of ecological interception pond 2 and be connected, place biomass charcoal and zeolite packing respectively on first net filled frame and second net filled frame and avoid upper biomass charcoal and zeolite packing direct and water distributor 9 contact, avoid blockking up the water distribution hole, be surface infiltration between water distribution layer 201 and the biomass charcoal layer 202, more be favorable to sewage infiltration. Further, in order to facilitate replacement of the filler, the biomass charcoal layer 202 includes a biomass charcoal filler cage laid on the first grid filler frame and a biomass charcoal filler filled in the biomass charcoal filler cage, the zeolite filler layer 203 includes a zeolite filler cage laid on the second grid filler frame and a zeolite filler filled in the zeolite filler cage, the biomass charcoal filler cage and the zeolite filler cage are connected with a lifting rope, the arrangement of the first grid filler frame, the second grid filler frame, the biomass charcoal filler cage and the zeolite filler cage is favorable for replacement of the biomass charcoal and the zeolite, when the zeolite filler needs to be replaced, the lifting rope is used for lifting each zeolite filler cage to replace the zeolite filler in the zeolite filler cage, and further, when the biomass charcoal filler needs to be replaced, the second grid filler frame is removed, each biomass charcoal filler cage is lifted through the lifting rope to replace the biomass charcoal filler in the biomass charcoal filler cage.
The vertical flow composite type artificial wetland treatment tank 3 is internally provided with a plant layer 301, a soil layer 302, a gravel layer 303 and a biological zeolite layer 304 from top to bottom in sequence. Wherein the laying thickness of the soil layer 302 is 20-30cm, the laying thickness of the gravel layer 303 is 60-80cm, and the laying thickness of the biological zeolite layer 304 is 20-30cm. A cover plate with hollowed holes is arranged between the plant layer 301 and the soil layer 302, and roots of plants in the plant layer 301 are planted in the soil layer 302 divided by the hollowed holes.
The vertical flow composite artificial wetland treatment tank 3 is internally divided into a plurality of stages of up-down vertical artificial wetland units by a plurality of middle clapboards 11 in sequence, the middle clapboards 11 are connected with the bottom of the vertical flow composite artificial wetland treatment tank 3, and an overflow space is reserved between each middle clapboard 11 and a cover plate, so that the up-down vertical artificial wetland unit at the upper stage and the down-down vertical artificial wetland unit at the lower stage are communicated with each other only through the overflow space at the top of the middle clapboard 11.
Furthermore, each level of the uplink and downlink vertical artificial wetland units is divided into a wetland vertical downlink channel and a wetland vertical uplink channel by a baffle 6, the bottom of the baffle 6 and the bottom of the vertical flow composite artificial wetland treatment tank 3 keep a set treatment tank bottom space, and the treatment tank bottom space is used as a water passing channel of the wetland vertical downlink channel and the wetland vertical uplink channel; the top ends of the deflection baffles 6 are flush with the top surface of the soil layer 302, preferably, the top ends of the deflection baffles 6 are connected with the cover plate, so that the vertical downlink channels and the vertical uplink channels of the wetlands in the uplink and downlink vertical artificial wetland units at each level are only communicated through the water passing channels; the vertical wetland ascending channel of the upper-level ascending and descending vertical artificial wetland unit and the vertical wetland descending channel of the lower-level ascending and descending vertical artificial wetland unit are communicated through the top overflow of the middle partition plate 11.
The bottom end of the baffle 6 extends to the middle part of the biological zeolite layer 304, and the top of the middle clapboard 11 extends to the middle part of the soil layer 302, thereby ensuring that the sewage is fully contacted with the microorganism, the plant root system, the gravel and the biological zeolite, and enhancing the purification capacity of the artificial wetland system.
The sewage in the ecological intercepting tank 2 overflows to a wetland vertical descending channel of a first-stage up-down vertical artificial wetland unit of a vertical flow composite artificial wetland treatment tank 3 through the top, after passing through a multi-stage up-down vertical artificial wetland unit, the sewage enters a water collecting tank 4 through a water outlet pipe 10 communicated with the wetland vertical ascending channel of a last-stage up-down vertical artificial wetland unit, then overflows to an ultraviolet disinfection tank 5 through the water collecting tank 4 for ultraviolet disinfection, a water stop valve is arranged at a water outlet of the ultraviolet disinfection tank 5 to control the shutdown of the discharged water, and the sewage is ensured to be discharged after being subjected to ultraviolet irradiation for a set time in the ultraviolet disinfection tank 5.
To sum up, the utility model discloses a baffling sedimentation tank 1 and ecological interception pond 2, under multiple action such as physics sediment (baffling sedimentation tank 1), adsorption and degradation (ecological interception pond 2), biodegradation (compound constructed wetland treatment tank 3 of vertical current) and ultraviolet disinfection (ultraviolet disinfection pond 5), get rid of most pollutant in the sewage, reduce constructed wetland system load. The ecological intercepting pool 2 uses a first grid packing frame, a second grid packing frame, a biomass charcoal packing cage and a zeolite packing cage which are detachable, so that the flexibility and convenience of sewage treatment of the artificial wetland system are improved, and the full utilization and the sustainable utilization of the packing are enhanced. The conventional single-flow-direction wetland system is coupled into the multi-stage up-down-flow-direction artificial wetland system, sewage flows up and down in a multi-stage manner in the artificial wetland system along the vertical direction, so that alternate aerobic, anoxic and anaerobic conditions are formed in the artificial wetland system, the nitrification effect and the denitrification effect are ensured, the sewage retention time is prolonged, and the sewage is fully contacted with microorganisms, plant roots, gravel and biological zeolite in the artificial wetland system, so that the purification capacity of the artificial wetland system is enhanced.
It should be noted that the embodiments described in this application are only examples to illustrate the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A multi-stage vertical flow composite type artificial wetland system comprises a baffling sedimentation tank (1), and is characterized by also comprising an ecological interception tank (2), a vertical flow composite type artificial wetland treatment tank (3), a water collecting tank (4) and an ultraviolet disinfection tank (5); the baffling sedimentation tank (1) comprises a baffling tank and an inverted-cone-shaped sludge collecting tank, the inverted-cone-shaped sludge collecting tank is arranged at the bottom of the baffling tank, and the bottom of the baffling tank is communicated with the bottom of the ecological intercepting tank (2) through a drain pipe (7); the top of the ecological interception tank (2) is communicated with the top of the overflow side of the vertical flow composite artificial wetland treatment tank (3) through overflow; the top of the water outlet side of the vertical flow composite type artificial wetland treatment tank (3) is communicated with the water collecting tank (4) through a water outlet pipe (10); the water collecting tank (4) is communicated with the ultraviolet disinfection tank (5) in an overflowing way.
2. The multi-stage vertical flow composite artificial wetland system according to claim 1, characterized in that a drain pipe (7) is arranged at the bottom of the side surface of the baffling basin (1), a filter screen (8) is installed at one end of the drain pipe (7) communicated with the baffling basin (1), a sludge discharge pipe is arranged at the bottom of the inverted cone-shaped sludge collection basin, and an air release valve is arranged on the sludge discharge pipe.
3. The multistage vertical flow composite type artificial wetland system according to claim 1, characterized in that a water distribution layer (201), a biomass charcoal layer (202) and a zeolite filler layer (203) are sequentially arranged in the ecological intercepting pool (2) from bottom to top; the water distribution layer (201) is internally provided with water distribution pipes (9), the water distribution pipes (9) are uniformly distributed in the water distribution layer (201), the pipe wall of each water distribution pipe (9) is provided with water distribution holes, and the water distribution pipes (9) are communicated with the drain pipes (7).
4. The multi-stage vertical flow composite type constructed wetland system according to claim 3, wherein a first grid filler frame is arranged between the water distribution layer (201) and the biomass charcoal layer (202), and a second grid filler frame is arranged between the biomass charcoal layer (202) and the zeolite filler layer (203).
5. The multi-stage vertical-flow composite type constructed wetland system according to claim 4, wherein the biomass charcoal layer (202) comprises a biomass charcoal packing cage laid on a first grid packing frame and biomass charcoal packing filled in the biomass charcoal packing cage, and the zeolite packing layer (203) comprises a zeolite packing cage laid on a second grid packing frame and zeolite packing filled in the zeolite packing cage.
6. The multistage vertical-flow composite artificial wetland system according to claim 1, characterized in that a plant layer (301), a soil layer (302), a gravel layer (303) and a biological zeolite layer (304) are sequentially arranged in the vertical-flow composite artificial wetland treatment tank (3) from top to bottom; the laying thickness of the soil layer (302) is 20-30cm, the laying thickness of the gravel layer (303) is 60-80cm, and the laying thickness of the biological zeolite layer (304) is 20-30cm.
7. The multi-stage vertical-flow composite type constructed wetland system according to claim 6, wherein a cover plate with hollowed holes is arranged between the plant layer (301) and the soil layer (302), and the roots of the plants in the plant layer (301) are planted in the soil layer (302) divided by the hollowed holes.
8. The multi-stage vertical flow composite type artificial wetland system according to claim 7, wherein the vertical flow composite type artificial wetland treatment tank (3) is internally divided into multi-stage vertical artificial wetland units in an up-down direction by a plurality of middle partition plates (11), the middle partition plates (11) are connected with the bottom of the vertical flow composite type artificial wetland treatment tank (3), and an overflow space is reserved between each middle partition plate (11) and the corresponding cover plate;
each level of the up-down vertical artificial wetland unit is divided into a wetland vertical down channel and a wetland vertical up channel by a baffle (6), the bottom of the baffle (6) and the bottom of the vertical flow composite artificial wetland treatment tank (3) keep a set treatment tank bottom space, and the treatment tank bottom space is used as a water passing channel of the wetland vertical down channel and the wetland vertical up channel; the top end of the baffling baffle (6) is flush with the top surface of the soil layer (302), and the wetland vertical ascending channel of the upper-level ascending and descending vertical artificial wetland unit and the wetland vertical descending channel of the lower-level ascending and descending vertical artificial wetland unit are communicated in an overflowing mode through the overflow space at the top of the middle partition plate (11).
9. The multi-stage vertical flow combined artificial wetland system according to claim 8, wherein the baffle plates (6) extend from the bottom ends to the middle of the zeolites layer (304), and the middle partition plates (11) extend from the top to the middle of the soil layer (302).
10. The multi-stage vertical flow composite type artificial wetland system according to claim 9, wherein the wetland vertical ascending channel of the last stage of the ascending and descending vertical artificial wetland unit is communicated with the water collecting tank (4) through a water outlet pipe (10).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880372A (en) * | 2021-11-15 | 2022-01-04 | 北京广诚环境科技有限公司 | Domestic sewage constructed wetland treatment system and construction process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880372A (en) * | 2021-11-15 | 2022-01-04 | 北京广诚环境科技有限公司 | Domestic sewage constructed wetland treatment system and construction process |
| CN113880372B (en) * | 2021-11-15 | 2023-05-30 | 北京广诚环境科技有限公司 | Constructed wetland treatment system for domestic sewage and construction process |
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Address after: Room 09, 22nd Floor, Building A, Wuhan Optics Valley International Chamber of Commerce, No. 2-2 Guandongyuan Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430071 Patentee after: Wuhan Zhongke Aquatic Ecological Environment Co.,Ltd. Address before: 430071 25th floor, Huayin building, 786 Minzhu Road, Wuchang District, Wuhan City, Hubei Province Patentee before: WUHAN ZHONGKE HYDRBIOLOGY ENVIRONMENT ENGINEERING CO.,LTD. |
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